net: use .invalid for an invalid domain name

Fixes #25370

Change-Id: I12da0cc17f433ca12c85fb986d65ac9ecb2c3f20
Reviewed-on: https://go-review.googlesource.com/c/151359
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/net/lookup_test.go b/src/net/lookup_test.go
index 65daa76467dd98003d0b1e22da99b2de3d3815f2..35b2a635b2c95bd78c2f825f966fd0706ec65967 100644 (file)
--- a/src/net/lookup_test.go
+++ b/src/net/lookup_test.go
@@ -925,8 +925,8 @@ func TestLookupHostCancel(t *testing.T) {
 
        const (
                google        = "www.google.com"
-               invalidDomain = "nonexistentdomain.golang.org"
-               n             = 600 // this needs to be larger than threadLimit size
+               invalidDomain = "invalid.invalid" // RFC 2606 reserves .invalid
+               n             = 600               // this needs to be larger than threadLimit size
        )
 
        _, err := LookupHost(google)